CN220206841U - Automobile tail pipe noise testing device - Google Patents
Automobile tail pipe noise testing device Download PDFInfo
- Publication number
- CN220206841U CN220206841U CN202320466935.3U CN202320466935U CN220206841U CN 220206841 U CN220206841 U CN 220206841U CN 202320466935 U CN202320466935 U CN 202320466935U CN 220206841 U CN220206841 U CN 220206841U
- Authority
- CN
- China
- Prior art keywords
- fixedly connected
- automobile tail
- noise
- tail pipe
- testing device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 36
- 239000000428 dust Substances 0.000 claims abstract description 18
- 238000013016 damping Methods 0.000 claims abstract description 12
- 238000001514 detection method Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 4
- 238000005457 optimization Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
Landscapes
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
The utility model discloses a noise testing device for an automobile tail pipe, which comprises a base, wherein the top of the base is fixedly connected with a telescopic rod, the top of the telescopic rod is fixedly connected with a noise meter, the left side of the noise meter is fixedly connected with a supporting frame, and the inner wall of the supporting frame is rotatably connected with a damping shaft. According to the utility model, the base is moved to the lower part of the automobile tail gas pipe, then the height of the noise meter can be controlled through the telescopic rod, so that the height of different automobile tail gas pipes can be adapted, then the rotating box can align the capacitive microphone sensor with the automobile tail gas pipe through the damping shaft, dust in the tail gas can be blocked through the first filter screen, then the automobile tail gas can be tested, and the tested value can be displayed through the noise meter, so that the effects that the automobile tail gas pipe can not be affected by jitter of the automobile tail gas pipe during detection are achieved, and the testing accuracy can be improved.
Description
Technical Field
The utility model relates to the technical field of automobile exhaust detection, in particular to an automobile tail pipe noise testing device.
Background
The automobile exhaust monitoring refers to analysis and measurement of exhaust gas discharged during idling or working conditions of an automobile on site or on an automobile running test bed. Noise generated by the exhaust of a vehicle internal combustion engine is also a part of an important detection step, and the engine sound quality must be reasonable and not interfere with or violate noise regulation requirements. Engine noise characteristics and Sound Pressure Level (SPL) are largely dependent on the intake and exhaust systems, which must be fine tuned to meet performance requirements. The driver can know the sound suitable for the engine speed and the vehicle type through the sound quality of the engine, such as powerful acceleration, high speed and silence when running at a constant speed.
At present, most of existing automobile tail pipe noise testing devices are directly fixed on an automobile exhaust pipe, and when the existing automobile tail pipe noise testing devices are tested, the automobile exhaust pipe can shake, so that the tail pipe noise testing devices are fixed on the tail pipe noise testing devices to shake along with the exhaust pipe, and the tail pipe noise testing devices can generate extra sound due to shaking, so that test data are inaccurate; in addition, there is a handheld noise tester (such AS 804), when the worker uses the handheld noise tester, the worker needs to squat behind the automobile exhaust pipe and align the worker with the exhaust pipe, which is more troublesome to use, and also makes the worker inhale automobile exhaust easily, which is also inconvenient for the worker to use.
Therefore, the existing noise testing device of the tail pipe of the automobile needs to be modified, and the problem that the noise testing device of the tail pipe is not accurate and is inconvenient for workers to use because additional noise possibly occurs due to the fact that the noise testing device of the tail pipe is vibrated along with the exhaust pipe is effectively prevented.
Disclosure of Invention
In order to solve the problems in the prior art, the utility model aims to provide an automobile tail pipe noise testing device, which has the advantages of being not affected by jitter when an automobile tail pipe is detected, being convenient for a worker to use, improving testing accuracy, and solving the problems of inaccurate testing data and inconvenient worker use caused by the fact that extra noise possibly occurs when the tail pipe noise testing device follows the jitter of an exhaust pipe.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides an automobile exhaust tail pipe noise testing arrangement, includes the base, the top fixedly connected with telescopic link of base, the top fixedly connected with noise meter of telescopic link, the left side fixedly connected with support frame of noise meter, the inner wall of support frame rotates and is connected with the damping axle, the surface cover of damping axle is equipped with rotatory box, rotatory box inside has seted up the cavity, the inner wall fixedly connected with connecting block of cavity, the inside threaded connection of connecting block has capacitive microphone sensor, and capacitive microphone sensor's right-hand member passes through electric wire and noise meter wire connection, the left end of rotatory box is provided with the screw thread end, the surface threaded connection of screw thread end has the shield, the inner wall fixedly connected with first filter screen of shield.
As the preferable mode of the utility model, the inner wall of the cavity is fixedly connected with an annular block, the left side of the annular block is provided with a clamping groove, the inner wall of the clamping groove is clamped with an annular frame, and the inner wall of the annular block is fixedly provided with a second filter screen.
Preferably, the right side of the dust cover is fixedly connected with a fixing ring, and the fixing block is contacted with the annular frame.
Preferably, the first filter screen has a larger screen diameter than the second filter screen.
As the preferable mode of the utility model, the surface of the telescopic rod is connected with the torsion block in a threaded manner, and the torsion block is matched with the telescopic rod for use.
As preferable in the utility model, the bottom of the base is fixedly connected with a self-locking universal wheel.
Compared with the prior art, the utility model has the following beneficial effects:
1. according to the utility model, the base is moved to the lower part of the automobile tail gas pipe, then the height of the noise meter can be controlled through the telescopic rod, so that the height of different automobile tail gas pipes can be adapted, then the rotating box can align the capacitive microphone sensor with the automobile tail gas pipe through the damping shaft, dust in the tail gas can be blocked through the first filter screen, then the automobile tail gas can be tested, and the tested value can be displayed through the noise meter, so that the effects that the automobile tail gas pipe can not be affected by jitter of the automobile tail gas pipe during detection are achieved, and the testing accuracy can be improved.
2. According to the utility model, through the arrangement of the annular block, the clamping groove, the annular frame and the second filter screen, dust in tail gas can be secondarily blocked, and the dustproof effect of the first filter screen is assisted to be improved.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic top view of the structure of the present utility model;
fig. 3 is an enlarged schematic view of fig. 1 a according to the present utility model.
In the figure: 1. a base; 2. a telescopic rod; 3. a noise meter; 4. a support frame; 5. a damping shaft; 6. a rotating box; 7. a cavity; 8. a connecting block; 9. a capacitive microphone sensor; 10. a threaded end; 11. a dust cover; 12. a first filter screen; 13. an annular block; 14. a clamping groove; 15. an annular frame; 16. a second filter screen; 17. a fixing ring; 18. twisting blocks; 19. self-locking universal wheel.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
As shown in fig. 1 to 3, the noise testing device for the automobile tail pipe provided by the utility model comprises a base 1, wherein the top of the base 1 is fixedly connected with a telescopic rod 2, the top of the telescopic rod 2 is fixedly connected with a noise meter 3, the left side of the noise meter 3 is fixedly connected with a supporting frame 4, the inner wall of the supporting frame 4 is rotationally connected with a damping shaft 5, the surface of the damping shaft 5 is sleeved with a rotary box 6, a cavity 7 is formed in the rotary box 6, the inner wall of the cavity 7 is fixedly connected with a connecting block 8, the inner thread of the connecting block 8 is connected with a capacitive microphone sensor 9, the right end of the capacitive microphone sensor 9 is connected with the noise meter 3 through an electric wire, the left end of the rotary box 6 is provided with a thread end 10, the surface of the thread end 10 is in threaded connection with a dust cover 11, and the inner wall of the dust cover 11 is fixedly connected with a first filter screen 12.
Referring to fig. 3, an annular block 13 is fixedly connected to the inner wall of the cavity 7, a clamping groove 14 is formed in the left side of the annular block 13, an annular frame 15 is clamped to the inner wall of the clamping groove 14, and a second filter screen 16 is fixed to the inner wall of the annular block 13.
By means of the technical optimization scheme, dust in tail gas can be secondarily blocked through the arrangement of the annular block 13, the clamping groove 14, the annular frame 15 and the second filter screen 16, and the dustproof effect of the first filter screen 12 is assisted to be improved.
Referring to fig. 3, a fixing ring 17 is fixedly coupled to the right side of the dust cap 11, and a fixing block is in contact with the ring frame 15.
As a technical optimization scheme of the utility model, the dust cover 11 can be propped against the annular block 13 when being fixed by the fixing ring 17, so that the annular block 13 is prevented from being separated from the clamping groove 14.
Referring to fig. 3, first filter 12 has a larger diameter than second filter 16.
As a technical optimization scheme of the utility model, dust passing through the first filter screen 12 can be filtered again through the arrangement that the screen diameter of the first filter screen 12 is larger than that of the second filter screen 16, so that the problem that the dust affects the condenser microphone sensor 9 is avoided.
Referring to fig. 1, a torsion block 18 is screwed on the surface of the telescopic rod 2, and the torsion block 18 is matched with the telescopic rod 2.
As a technical optimization scheme of the present utility model, the telescopic distance of the telescopic rod 2 can be reinforced and fixed by the arrangement of the torsion block 18.
Referring to fig. 1, a self-locking universal wheel 19 is fixedly connected to the bottom of the base 1.
As a technical optimization scheme of the utility model, the mobility of the device can be improved through the arrangement of the self-locking universal wheels 19, and the device is convenient for staff to use.
The working principle and the using flow of the utility model are as follows: when a worker uses the automobile tail pipe noise testing device to test an automobile tail pipe, firstly, the automobile tail pipe noise testing device moves to the rear of the automobile tail pipe through a self-locking universal wheel 19, then the telescopic rod 2 is pulled upwards to adjust the height of the rotary box 6, then the rotary torsion block 18 is rotated to fix the telescopic rod 2, then the rotary box 6 is rotated through the damping shaft 5 to enable the dust cover 11 to be aligned with the automobile tail pipe, then an automobile is started to exhaust an exhaust pipe, then noise is tested through the capacitive microphone sensor 9, test data are displayed on the noise meter 3, at the moment, the exhaust gas of the automobile tail pipe is filtered through the first filter screen 12 and the second filter screen 16 respectively, so that dust in the exhaust gas is prevented from entering the rotary box 6 and affecting the test of the capacitive microphone sensor 9, when the first filter screen 12 and the second filter screen 16 are required to be cleaned, the dust cover 11 is only required to be rotated to be separated from the threaded end 10, and then the annular block 13 can be taken out, so that the first filter screen 12 and the second filter screen 16 can be cleaned.
To sum up: this automobile exhaust tail pipe noise testing arrangement uses through the cooperation of base 1, telescopic link 2, noise meter 3, support frame 4, damping shaft 5, rotatory box 6, cavity 7, connecting block 8, condenser microphone sensor 9, screw thread end 10, shield 11 and first filter screen 12, thereby has solved and has prevented that tail pipe noise testing arrangement from following the blast pipe shake and probably taking place extra noise, leads to test data inaccurate, and inconvenient staff's problem of using.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides an automobile exhaust tail pipe noise testing arrangement, includes base (1), its characterized in that: the novel noise meter is characterized in that the top of the base (1) is fixedly connected with the telescopic rod (2), the top of the telescopic rod (2) is fixedly connected with the noise meter (3), the left side of the noise meter (3) is fixedly connected with the support frame (4), the inner wall of the support frame (4) is rotationally connected with the damping shaft (5), the surface of the damping shaft (5) is sleeved with the rotary box (6), the cavity (7) is formed in the rotary box (6), the inner wall of the cavity (7) is fixedly connected with the connecting block (8), the inner thread of the connecting block (8) is connected with the capacitive microphone sensor (9), the right end of the capacitive microphone sensor (9) is connected with the noise meter (3) through an electric wire, the left end of the rotary box (6) is provided with the thread end (10), the surface thread of the thread end (10) is connected with the dust cover (11), and the inner wall of the dust cover (11) is fixedly connected with the first filter screen (12).
2. The automobile tail pipe noise testing device according to claim 1, wherein: the inner wall fixedly connected with annular piece (13) of cavity (7), draw-in groove (14) have been seted up in the left side of annular piece (13), the inner wall joint of draw-in groove (14) has annular frame (15), the fixed second filter screen (16) of inner wall of annular piece (13).
3. The automobile tail pipe noise testing device according to claim 2, wherein: the right side of the dust cover (11) is fixedly connected with a fixing ring (17), and the fixing block is contacted with the annular frame (15).
4. A noise testing device for an automotive exhaust pipe according to claim 3, characterized in that: the diameter of the first filter screen (12) is larger than that of the second filter screen (16).
5. The automobile tail pipe noise testing device according to claim 1, wherein: the surface thread of telescopic link (2) is connected with and twists piece (18), and twists piece (18) and telescopic link (2) cooperation use.
6. The automobile tail pipe noise testing device according to claim 1, wherein: the bottom of the base (1) is fixedly connected with a self-locking universal wheel (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320466935.3U CN220206841U (en) | 2023-03-13 | 2023-03-13 | Automobile tail pipe noise testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320466935.3U CN220206841U (en) | 2023-03-13 | 2023-03-13 | Automobile tail pipe noise testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220206841U true CN220206841U (en) | 2023-12-19 |
Family
ID=89138937
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320466935.3U Active CN220206841U (en) | 2023-03-13 | 2023-03-13 | Automobile tail pipe noise testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220206841U (en) |
-
2023
- 2023-03-13 CN CN202320466935.3U patent/CN220206841U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104198031B (en) | A kind of Twist Vibration System of Engine Crankshaft signal detecting method and device | |
| Chiavola et al. | Combustion characterization in diesel engine via block vibration analysis | |
| CN220206841U (en) | Automobile tail pipe noise testing device | |
| CN108180983A (en) | The emergency management and rescue vehicle vibration displacement reconstructing method of adaptive time-frequency domain mixed filtering | |
| CN108917916A (en) | A kind of measurement method of shaft absolute vibration | |
| CN108303465A (en) | A kind of fault detection method and system based on machine vibration | |
| JPH08512116A (en) | Pulsating amount detector | |
| CN1020774C (en) | High-speed highway level | |
| CN209215331U (en) | A kind of automobile exhaust gas checking apparatus facilitating suspension | |
| CN217604864U (en) | Automobile swing arm detection device | |
| CN116558752A (en) | Method and device for analyzing abnormal vibration sound of automobile parts | |
| CN212748323U (en) | NVH-based automobile noise source detection device | |
| CN208736292U (en) | A kind of vehicle dormer window face difference detecting instrument | |
| CN218629412U (en) | Light-tight sampling device of smokemeter | |
| CN110208005A (en) | A kind of automobile engine determines rotational speed devices | |
| CN102759632A (en) | Device and method for measuring rotational speed of engine based on differential pressure signals of exhaust back pressure | |
| CN103604941B (en) | A kind of wheel of vehicle device for testing rotating speed | |
| CN208636246U (en) | A kind of automobile exhaust gas checking apparatus being adapted to different-diameter exhaust pipe | |
| CN204827608U (en) | Exhaust gas purifier for car | |
| CN112720289A (en) | Indicator valve installation improvement structure of medium-speed diesel engine | |
| CN208636020U (en) | A kind of motorcycle vibration absorber test device | |
| CN203688233U (en) | Medium gasoline vehicle simple transient condition exhaust gas detection device | |
| CN215598435U (en) | Connecting device for online detection of coiled tubing | |
| CN220568654U (en) | Urban fuel gas laser detector | |
| CN219757724U (en) | Automobile half-axle abnormal sound testing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |